Question

The alkyl halides that can be made by free radical halogenation of alkanes are

• A. $ RCl, $ and $ RBr $ but not RF or $ RI $
• B. $ RF,RCl $ and $ R\,Br $ but not $ RI $
• C. $ RF,\text{ }RCl,\text{ }RBr,\text{ }RI $
• D. $ RF,RCl $ and $ RI $ but $ RBr $

Answer 1

Answer: (A)

$ RCl $ and $ ~RBr $ can be prepared by free radical halogenation of alkanes while RF and $ RI $ cannot be prepared. With $ {{F}_{2}}, $ the reaction is not only explosive but also brings cleavage of C?C bonds while with $ {{\text{I}}_{\text{2}}} $ the reaction is too slow to be of any practical value.